84740209900 has 18 divisors (see below), whose sum is σ = 183886255700. Its totient is φ = 33896083920.

The previous prime is 84740209877. The next prime is 84740209901. The reversal of 84740209900 is 990204748.

It is not an unprimeable number, because it can be changed into a prime (84740209901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 423700950 + ... + 423701149.

Almost surely, 2^84740209900 is an apocalyptic number.

It is an amenable number.

84740209900 is an abundant number, since it is smaller than the sum of its proper divisors (99146045800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84740209900 is a wasteful number, since it uses less digits than its factorization.

84740209900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847402113 (or 847402106 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 84740209900 in words is "eighty-four billion, seven hundred forty million, two hundred nine thousand, nine hundred".